Potyvirus Helper Component-Proteinase Self-Interaction in the Yeast Two-Hybrid System and Delineation of the Interaction Domain Involved

Autor: Olivier Le Gall, Thierry Candresse, Françoise Bernardi, Silvio Urcuqui-Inchima, Sylvie German-Retana, Gabrièle Drugeon, Jocelyne Walter, Anne-Lise Haenni
Přispěvatelé: Unité Mixte de Recherche en Santé Végétale (INRA/ENITA) (UMRSV), Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut des Sciences de la Vigne et du Vin (ISVV)
Rok vydání: 1999
Předmět:
Zdroj: Virology 1 (258), 95-99. (1999)
Virology
Virology, Elsevier, 1999, 258 (1), pp.95-99
ISSN: 0042-6822
1096-0341
DOI: 10.1006/viro.1999.9725
Popis: Using the yeast two-hybrid system, a screen was performed for possible interactions between the proteins encoded by the 5′ region of potyviral genomes [P1, helper component-proteinase (HC-Pro), and P3]. A positive self-interaction involving HC-Pro was detected with lettuce mosaic virus (LMV) and potato virus Y (PVY). The possibility of heterologous interaction between the HC-Pro of LMV and of PVY was also demonstrated. No interaction involving either the P1 or the P3 proteins was detected. A series of ordered deletions from either the N- or C-terminal end of the LMV HC-Pro was used to map the domain involved in interaction to the 72 N-terminal amino acids of the protein, a region known to be dispensable for virus viability but necessary for aphid transmission. A similar but less detailed analysis mapped the interacting domain to the N-terminal half of the PVY HC-Pro.
Databáze: OpenAIRE